I believe the answer is: Primary
For example, let's say take a look at normal employees at a company.
For most of them, the main reason they spend their time to do the job correctly is to obtain money/salary even though they have to spend their time being scolded by unlikable boss.
In the scenario above, we can say that money is the primary reinforcer for the target behavior
Answer:
law of diminishing marginal utility i hope this helps<3
Explanation
2.3% is the correct answer.
Thousands of people start smoking cigarettes every day in the Unites States, and about 70% of long term smokers want to quit smoking. However, according to the Centers for Disease Control and Prevention, the likelihood that professor Williamson will have achieved sustained abstinence by the end of the year is only 2.3%.
